Sole-pressing machine.



J. W. COSGROVE & E. ERICKSON. SOLE PRESSING MACHINE.

APPLICATION FILED MAR.10, 1910v Patented Apr. 15, 1913 3 SHEETS j 111.. L g

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1% Bless-es 71 Hit-8 5 (212 1% Se a mmmw J. W. GDSGROVB & E. ERICKSON. SOLE PRESSTNG MACHINE.

' APPLICATION FILED MAR. 10, m0

Patented Apr. 15. 191 )v 3 SHEETS SHEET '2 Q a W Invenlbr; 6M MM UNITED STATES PATENT OFFICE.

Jenn w eosqn ve, orninaroan, AND ww Emerson; or BEVERLY, nassaortusarrs, assrenons r omen snore mecnntmr eomrenr; or new, NEW

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Patented Apr. 1913.

a plication filed Keith 10, 1910'. serial at. 648,329.

-United States, residing, respectively, at

Medford, Middlesex county, and Beverly, Essex county, and State of Massachusetts,

have invented certain new and useful Improvementsin Sole-Pressing Machines; and We do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to sole pressing machines, and more articularly to that class of machines which comprise a shoe supporting jack and a sole pressing pad, and which are used in performing the operation of laying the sole.

The invention is intended primarily as an improvement in the sole laying-machine disclosed in the patent to Davenport, No. 930,272, dated August 3, l9'09,altho'u'gh not limited in its application to this machine.

The machine illustrated in the patent is provided with two duplicate sole laying mechanisms which are alternately thrown into operation by' thebperator, one mechanism acting 'to lay the sole of a shoe while the opfe'rator is removing a'shoe from the other machine and inserting and sole therein. In each of these duplicate machines the shoe supporting jack is secured to a crosshead which is mounted-to reciprocate upon vertical guide rods. The crosshead is supported upon springs surroundingthe, guiderods, and 1S depressed by a treadle to bring. the sole of the shoe carried on the jack into contact with a pressing pad.

Clutch collars are mounted to slide onthe. guide rods {above the crosshead, and jack to automatic'a ly lockthe crosshead in its depressed position during the upward movement of the pressing to press the sole into position up'on t shoe. After the pressing pad has beeriemoved away from the shoe, the jack is re ased so that it may return to its initial sition-by actuating devices carried on the ack supporting crosshead. The devices for clutching the clutch collars to the guide rods. in the maoh fle of the patent re erred to consist of s litsleeves and operating devices having- 3 ntiall'y a new shoe.

the construction shown in the. patent to Ham, No. 37 5 549, dated December27, 1887. It has been found that these split sleeves do not always operate to securely lock the pack in position, and that they soon become worn in such manner as to render their operation uncertain and unreliable.-

One object of the presentinvention is accordin -l to provide novel and improved means or automatically locking the jack which will be uniformly reliable in operation, and which may be readily adjusted to take-up any wear upon the parts, and to maintain the parts in proper active relation.

A further object of the invention is 'to provide a novel and improved construction and arrangement of devices for automatically releasing the jack after the pressure between the pressing pad and jack has been removed and the jack is to be returnedto its initial position To the above ends the invention consists of the features and combinations of parts hereinaft r described and-referred to in the claims, t e advantages of which will be obyious to thoseskilled in the art.

The Y rious features of the invention will be readi y understood from an inspection of the accoxn anying drawings andthe following detal ed description of the machine illustrated therein.

In the drawings Figure'l is a side elevation of one of-tlie two machines which are embodied in a twin sole pressing machine; Fig. 2 is a similar view showin the arts in different position; Fig. 3- is as out e evat-ion of the machine, a part of the machine being broken away; Fig. 4: is a detail showing apart of the ack releasing mechanism; 5 is a plan view of the parts shown in Fig. 4; Fig. 6 is a plan view of. the devices for locking the jack upon the guide rods, the

upper plate of the clutch carrying collar bemg removed; and Fig. 7 is a side elevation of the devices shown in Fig. 6.

As shown the drawings, the machine is provided -with a crosshead 1 which carrie's a shoe supporting jack 2 and is 'fiourited to reciprocate upon guide rods 3. The crosshead is raised and held in elevated position b springs 4, and is de ressed to bring the s carried by the jac a ainst the pressing pad 5 by a treadle 6 an connecting rods 7; The pressing pad 5 is carried upon a head 8 mounted to reciprocate upon the rods '3, and moved toward and from the jack by When the jack is moved downward tobring the shoe carried thereby into engage ment wit-h the pressing pad 5, it is automatically locked against upward movement on the rods 3 by clutch collars 11 which are mounted to slide upon the rods 3. The devices for securing the clutch collars to the rods comprise tubular clutches in the form of 'sleeves'12 which surround the rods and are held within the clutch collars 11. Each of these "sleeves is providedwith a cut or slot through its wall which extends from end to end of the sleeve and also throughout a part of its length at least extends circumerentially around the sleeve, the result being that a substantially helical sleeve is formed by the cut or slot. In the specific construction shown the slot or cut is r0-. vided 'with two end portions 13 an 14 which extend longitudinally of the sleeve,

and with an intermediate portion 15 which extends circumferentially of the sleeve and connects the inner ends of the twe-end an inclined surface 19 arranged to be engaged by an inclined cam surface 20'formed on the up er end of an actuating lever 21 which is pivoted in the collar 11. The lower end of the lever 21 is arranged to engage an inclined surface 22 on the jack carrying crosshead.

When the crosshead is moved down on the guide rods, the clutch collars 11 slide down with it, and then the treadle is released and the sprin 4 tend to force the crosshead upward, t e inclined surfaces. 22 acting on the levers 21' force the cam surfaces 20 on the lever-a inst the lugs 17, and thus contract the c utch sleeves 12. By reason of their substantially helical shape the clutch sleeves are contracted to secure a firm and reliable grip upon the guide rods, and thus securely lock the clutch collars and jack carryin' crosshead against upward movement. adjustment of the screw 18 the clutch sleeve may be brought into proper relation to the actuating lever 21 to secure the most effective operation of the clutch sleeve and to compensate for any wear upon the arts.

e devices for releasing the jack carry- P01? tion's. The sleeve is provlded near its lower 1,ops,72a

in the head and provided. with cams 24' which are arranged to engage and 11ft the.

clutch collars 11 when the shaft is rocked. The rock shaft is provided at, oneend with an arm 25, and is held in normal position with the cams 24 out of engagement with the clutch collars by a spring 26. The rock shaft23 may be actuated manually by the operator through a handle 27 secured to the end of the rock shaft. The rock shaft is actuated automatically to release the clutch collars after the pressure on the shoe has been relieved, through a rod 28 connected to the end of the arm 25. The devicesfor actuating the rod 28 at the proper intervals comprise a clutch block :29 carrying a grippinglever 30 which is provided with a hole 31 through which the rod passes. The gripping lever is pivoted on the clutch block and is forced in. adirection to engage and grip'the rod 28 by a spring 32. The gripping lever is so arranged that it will'sllde freely on the rod when the block 29 is moved upward, but will securely grip the rod when the block is moved downward. The block is arranged to slide on the rod, and is connected by links33 withthe front end of a lever 34, the rear end of whiehis arranged to be'engaged by a cam 35 secured to the shaft 10 of the machine. The lever is held in engagement with the cam by a spring 36.

When the pressing pad is in engagement with the shoe the parts are in the osition indicated in Fig. 1, the clutch bloc being 23 to lift the clutch collars 11'. This movement of the clutch lcollars disengages the lever 21 from the surface 22 on the jack carrying head, so that the clutch sleeves 12 no longer grip the guide rods 3. The clutch collars and jack carr ing head are thus released so that the sprmgs 4 quickly raise the jack to its normal position. In order that the rod 28 may move upward freely with the jack when the jack is thus released, the

gripping lever 30 is operated to release the rod immediately. after the rod is pulled downward. For this purpose an adjustable stop screw 37 is arranged to en age the rear end of the lever as the clutch lock 29 com letes its downward movement. When movable toward and away'from the pad, dethe liaver strikes the stop screw it is rocked vices for automatically locking the jack against the tension of the spring 32, and against movement away from the pad, mechis held in such position that the rod 28 may anism for automatically releasing the jack slide freely through it. The clutch block including a rod connected to move with the and gripping lever remain in this position jack, actuating devices comprising a clutch until the jack has been depressed to bring constructed to move freely with relation to the shoe into engagement with the pressing the rod in one direction and to grip the rod pad, and until the machine is again thrown when moved in the opposite direction, and into operation. When the machine is again means releasing the clutch when the jack is started the shaft 10 makes another half rV- released, substantially as described.

olution, bringing the parts into the position 5. A sole pressing machine, having, in indicated in Fig. 1. During this half revocombination, a sole pressing pad, a jack lution the pressing pad is actuated to apply movable toward and away from the pad, pressure to the shoe, and the lever 34 redevices 'for locking the jack against moveturns to its initial position, thus carrying ment away from the pad, mechanism for rethe clutch block and gripping plate upwar leasing the jack including a rod connected along the rod 28, preparatory to its next to move with the jack, and mechanism for jack releasing movement. actuating and releasing the rod, substan- While it is preferred to employ the spetially as described. cific construction and arrangement of the 6. A sole pressing machine, having, in partsshown and described, it will be uncombination, a sole pressing pad, a jack derstood that this construction and arrangemovable toward and away from the pad, dement is not essential, and that it may be vices for locking the jack against movement varied and modified without departing from away from the pad, mechanism for releasing the broader scope of the invention. the jack including a rod connected to move Having explained the nature and object with the jac a, gripping lever mounted to of the invention, and specifically described slide on the rod in one direction andito one form of machine in which it may be emthe rod when moved in the o posite dlrecbodied, what we claim is 2- tion, a cam and connections or operating 5 1. A sole pressing machine, having, in the gripping lever, and a stop for actuating combination, a sole pressing pad, a jack the lever to release the rod when the jack is movable toward and away from thepad, released, substantially as described. locking devices constructed to automatically A sole pressing machine, having, in look thejack against movement away from combination, guide rods, a jack supporting 10 the pad while allowing free movement tohead mounted to reciprocate thereon, tubuward the pa mechanism for operating the lar clutches also mounted on the rods each locking devices to release the jack comprisconsisting of a sleeve having a cut throu h ing a rod connected to move with the jack, its wall extending from end to end and cirand mechanism for intermittently actuating cumferentially of the sleeve, and devices for 0;, the rod, substantially as described. contracting the sleeves, substantially as de- 2. sole pressing machine, having, in scribed. combination, a sole pressing pad,- a ,jack 8. A sole pressing machine, having, in movable toward and away from the pad, decombination, guide rods, a jack supporting vices for automatically locking the jack head mounted to reciprocate thereon, helical i against movement away from the pad, mechclutch sleeves also mounted to reciprocate 4 anism for automatica ly releasing the jack on the rods, and devices for contracting and including a rod connected to move with the releasing the sleeves, substantially as dejack, and actuating devices having proviscribed.

sion for releasing the rod when the jack is 9. A sole pressing machine, having, in .115

released, substantially as described. combination, guide rods, a jack supporting sole pressing machine, having, in head mounted to reciprocate thereon, tubucombination, a sole .pressing pad, a jack lar clutches also mounted to reciprocate movable toward and away from the pad, dethereon each consisting of a sleeve havinga vices for automatically" locking the jack cut through its wall extending from end to against movement away from the pad, mechend and circumferentially of the sleeve, and anism for automatically releasing the jack relatively adjustable devices engaging the including a rod connected to move with the sleeves on opposite sides of the cuts for conack, and actuating devices comprising a tracting and releasing the sleeves, substanclutch constructed to move freely withrelatially as described. tion to the rod in one direction and to grip 10. A sole pressing machine, having, in 4 the rod when moved in the opposite direccombination, guide rods, a jack supporting tion, substantially as described. head mounted to reciprocate thereon, clutch A sole pressing machine, having, in sleeves surrounding the rods, actuating combination, a sole pressing pad, a jack cams for contractmg the sleeves to lock the head, and adjustable abutments-for coiipcombination, guide rods, a jack supporting erating with the cams in contracting the head mounted to reciprocate thereon, clutch sleeves, substantially as described. sleeves sliding on the rods, adjustable abut- 11. A sole pressing machine, having, in ments engaging the sleeves, and cam levers 5 combination, guide rods, a jack supporting" operated by the head for contracting the head mounted to reciprocate thereon, lutch sleeves, substantially as described;

N SGROVE.

sleeves surrounding the rods, and relatively adjustable actuating cams and abutments EDWARD ERICKSON. for contractingthe sleeves to lock the jack, Witnesses:

10 substantially as described. MARGARET L. GILMAN,

12. A sole pressi machine, having, in N. D. MCPHAIL. 

